Swivel-jar rope-socket



WITNESSES E. E. GREVE.

SWIVEL JAR ROPE SOCKET.

APPLICATION FILED SEPT. 24, 1919.

Patented Mar. 15, 1921.

INVENTOR UNITED STATES EDGAR E. GREVE, .OF BELLEVUE, PENNSYLVANIA.

SWIVEL-JAR ROPE- SOCKET.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application fi led September 24, 1919. Serial No. 326,047.

To all whom it may concern:

Be it known that I, EDGAR E. GREVE, a citizen of the United States, residing at 'Bellevue, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Swivel-Jar Rope-Sockets, of which the following is a specification.

My invention relates to improvements in rope sockets particularly designed for use in connection with well drilling tools or apparatus.

' Among the objects of the resent invention are to provide a new and improved rope socket of the character mentioned constructed so that the wearing parts are made of material to withstand long wear and heavy duty; a construction in which the wearing parts may be readily removed from the structure when necessary and new parts substituted therefor; a construction in which simple and efiicient means are provided for keeping the wearing parts, such for example as the contacting surfaces of the swivel jar member and the abutment against which the swivel is adapted to engage, free of sand or other ingredients;

Still further objects of the present invention are to provide in a rope socket swivel comprising two main body members, simple and efficient means for positively connecting the members together, an independent removable abutmentagainst which the swivel or cable holding member is adapted to engage, and a compressible seat for said member.

In the accompanying drawings which illustrate an application of my invention,

Figure 1 is a part elevational view and a part vertical sectional view of a rope socket embodying my invention;

Fig. 2, a detail view of a preferred form of a removable abutment;

Fig. 3, an enlarged sectional detail view of the central portion of Fig 1; and Fig. 4, a sectional view taken on line 4.4 of Fig. 1.

Referring to the drawings and as preferred, my rope socket includes an upper member 1 having a centrally disposed bore 2, an externally threaded tapering lower end portion 3, and a shoulder 4. In addition to the parts mentioned, the upper member 1 is formed with wrench receiving surfaces 5, a neck 6, and serrations 7 formed around the neck 6. Serrations 7 are designed for the purpose of enabling fishing tools to secure a firm hold on the upper portion of the rope socket construction.

8 designates the lower member of the rope socket structure, said member 8 being formed wlth a central bore 9 extending nearly throughout the length of said member 8. the lower end of member 8 being formed with the usual box connecting portion 10. If preferred, the bore 9 may extend entirely through member 8. The upper portion of member 8 1s provided with an internally threaded enlarged bore 11, said bore being adapted to receive the externally threaded part 3 of member 1. The upper end of member 8 is formed with a shoulder 12 against which the shoulder 4 is adaptedto make contact when the members are as sembled. These two members 1 and 8 constitute the body structure of my rope socket.

Between the lower end of the tapered enlarged bore portion 11 and the upper end of the bore 9, member 8 is cut away to form an annular chamber 13 and a shoulder or ledge 14 the diameter of the chamber 13 being slightly less than the diameter of the lower end of the portion 11 and greater than the diameter of the bore 9. Adapted to be disposed within said annular chamber 13 is a separable or independent centrally apertured and removable abutment member 15 and an annular compressible member 16. Member 15 is preferably made of tool or hard steel, and is formed with a plurality of small vertically extending passageways 17 and inclined passageways 18, the function of these passageways being to permit communication between the bore of the up per member and the bore of the lower member, for the purpose of permittin sand, dirt, and other foreign matter to pass out of the structure.

The compressible seat or ring 16 may be formed of any suitable soft metal, packing, springs, or any suitable material permitting thesaid seat to be compressed upon screwing the lower end of the upper member 1 into the upper end of the lower member 8. By means of this compressible seat or element 16, I am enabled to secure a very tight joint between the two members.

19 designates a tubular head or swivel 'member designed to receive and maintain ments.

and with a short annular neck portion 22,

the function of the latter being to guide the V swivel into the bore 2 01 the'upper member 1.

Formed on the interior surface of the wall of bore 9 is a spiral groove 23. This groove communicates with the passages formed in the abutment, and is designed to pass sand,

etc., downwardly from said abutment into openings 24 formed through the walls of member 8.

It will be understood that the swivel member 19 is designed to rotate and reciprocate in the bore 9 and that its upper end portion 21, which in practice is preferably ha:- dened, is adapted to strike against the hard removable abutment or striking block 15,

and particularly against the inclined contacting race 25 of said abutment. The bore 9 is of such a length as to permit of consid erablelongitudinal travel. of the swivel member therein and is of a diameter relatively to the diameter of the swivel member, to effectively guide the swivel member dur' ing its reciprocating and rotating move- What I claim is: 1. In a rope socket construciaon, an upper member, a lower member, one member having a threaded extension and a shoulder and compressible means coacting with the abut-- ment for permitting a tight connection between said members, and a swivel member adapted to engage said abutment.

3. In a rope socket construction, an upper member, a lower member, an, independent removable abutment, a compressible seat for the abutment, and a swivel member adapted to engage said abutment.

4. In a rope socket construction, an upper member having a bore, a lower member hav ing a bore, said bores being in alinement,

an independent removable abutment having an inclined striking face and a central bore and a passage termed on the interior of the abutment and on said face, said passage communicating with the bores of, the upper and lower members, and a swivel member adapted to engage theinclined face 5. In a rope socket construction, an upper member havinga bore, alower member hav-.

ing a bore, said' bores being in alinement, an independentapertured removable abutment having a'passage adapted to connect said bores, a compressible seat for. said abut ment, and a swivelmember adapted to engage the abutment. 1 v

6. In a ropesooket construction,-an upper member havinga bore, a lower member having a bore and formedwith a spiral passageway, anv abutmenthavinga passageway communicating withthe bore :of the upper member and the passageway-Lotthelower member, and aswivel member adaptedto engage the abutment.

7. In a rope socket construction, the combination with a body structure including two members each formed with a central bore, meansv for connecting said members, a swivel member, a rope connected'with the swivel, one of said body members having its interior wall cut to. form'a chamber, and an independent removable abutment disposed in said chamber, said swivel member-adapted to engage the abutment.

8.- In a rope socket-construction,

the com bination with a body structure'including two -members, e ch formed with a central bore, means for :connectingsaid members, a swivel member, onset-said body members formed witha chamber, a compressible seat and. removable abutment disposed in said chamber, said swivel gage the abutment. l

' In testimony whereof I aitix my signature in presence-of two witnesses.v EDGARE. GREVE.

Witnesses: i

' J. M. GEoGHEGAN,

'Lois. WINEMAN.

member adapted to en- 

